Charging device



Feb. 12 1924.

J. N. CAREY CHARGING DEVICE mm am On 2 Sheets-Sheet 1 Filed April 13 Feb. 12 1924.

J. N. CAREY CHARGING DEVICE 2' Sheets-$heet 2 Filed April 13 1921 Patented Feb. 12, 1924.

STAT

JOHNN. CAREY, or oAKMoNr, PENNSYLVANIA.

I CHARGING DEVICE.

Application filed April 13,

To all whom it may concern: 7

Be it known that I, JOHN N. CAREY, a citizen of the .United States, and resident of Oakmont, in the county of Allegheny and Stateof Pennsylvania, have invented a new and useful Improvement in Charging Devices; and I do hereby declare the fol lowing to be a full, clear, and exact description thereof.

My invention relates to acharging device, and while not limited to any specific use, it is particularly adapted forms in connection with the charging of a batch intoa tank furnace for melting glass.

One of the main objects of my invention is to provide a device of this character which is simple and durable in construction, and in which the pusher-plate (where a pusher-plate is employed) is soarranged that after the batch has been pushed into the furnace the pusher-plate, in withdrawing, is elevated so as not to move in contact with the top of the molten glass, thereby saving the wear on the plate, and at the same time preventing the accumulation of thick or hardened glass around the charging opening. To these ends my invention comprises the novel features hereinafter set forth and claimed.

In the accompanying drawing, Fig. 1 is a longitudinal elevation of my improved charging device partly in section, the position of the charging device when advanced into the furnace being shownin dotted lines; Fig. 2 is an enlarged horizontal section broken away; Fig. 3 is a like view showing the pushing-plate in position in the furnace to advance the batch; Fig. 4 is an enlarged section on the line 4'4, Fig. 1; Fig. 5. is a, section on the line 5-5, Fig. 2, and .Fig. 6 shows a modified form of my invention.

In the drawings the numeral 2 designates a portion of a suitable tank-furnace for melting glass, having the charging opening 3 controlled by the door 4. -The front cross- .wall 5 juts out beyond the'body of. the furnace audit is over this. wall that the push er-plate passes after thematerial has been discharged into the furnace, as will more fully hereafter appear.

The numeral 6 designates the frame-work which may be built up .ofchannels and angle-bars in anysuitable manner. A-track 7 is formed by the angle-bars 8 and said. track forms-the supportwfor the, wheels. 9

1921. Serial No. 460,941.

on the main carriage 10. The sides 11 of the main carriage 10 have the grooves 12 formed therein which form seats for the bars 13 which are secured in place on said carriage by the bolts 14. The outer ends of the bars 13 are pivotally connected, as at 15, to the lugs 16 on the pusher-plate 17. A cylinder 18 is provided whose plunger 19 is connected at its forward end by the pin 20 tothe supplemental carriage 24.

To provide against lateral movement of the carriage 10, said carriage is provided with the rollers 21 which engage the flanges 22of the channels 23 secured to the frame 6. The supplemental carriage 24 is mounted on the, carriage 10 and for this purpose brackets 25 on the carriage 10 are provided,

the shelves 26 of said'brackets forming the tracks for the wheels 27 of said supple mental carriage. 24. To prevent the vertical movement of said carriage, retaining plates 28 are provided which are secured to the tops 29 of the brackets25. The supplemental carriage 24 has the opening 30 forthe passage of the plunger 19, said supplemental carriage 24, as will hereafter appear, having a movement independent of the movement. of said carriage. 10.2

A compensating arm 31 is pivotally mounted by the bolt 32 on the supplemental carriage 24, and at the opposite ends of said compensating. arm are secured the clevises 33 to which the bars 34 are pivotally I connected by the pins35." The outer ends of the bars 34 are pivotally connected by the pins 36 to the upper end of the lugs I 16 of the pusher-plate 17.

A bell-crank 37 made up of separate pieces 38 secured at their upperends by the pin 39 and at their lower ends by the pin 37 This bell-crank 37 is pivotally mounted by the pin 40 on the carriage.10,as clearly shown in Fig. 5. A link 41 mounted on the pin 39is connected-by the pin 42 to the supplemental carriage 24. Mounted on the pin 37 v atthe lower end ofthe bell-crank 37 is the. roller 43 which is adapted to travel on the; rail 44, said rail at the forward end having the downwardly curved portion '45.

Slots 46. and 47 formed in the carriages Y 24and, 10,. respectively, make provision for the player movement of the bell-crank 37 as will lmore fully hereinafter appeain.

A. lug .48. onthe supplemental carriage. 24 is;-.adapted.,to engage a ,stopu49 on the carl/Vhen my improved charging device-is in.

bolt 51 carries the springsv 59, and 53 which tend to take up any shock in the movement ofthecarriage 24. 1 The rails 54 are providedon the frame 6 for the travelof the dump-car 55containing the batch. any suitable construction-and 1S moved back This dump-car-may be of and forth by the endless .cable 56 which is driven by the motor 58.

Supported on the front wall, 5 of the fur- I .nace is the plate 59 to which the shieldfit) is connectedby the angle 61, said shield having openings formed therein for the passage of the bars 13 and 34.

operation the batch contained in the car 55 1S deposited by dumpingthe car intothe opening 3 of the furnace, the batch forming in apile at this point. To advancetheba-tch and distribute it properlyvin the furnace is the purpose of the pushei plate 17, and during the discharge of the batchfrom the car the pusher-plate iswithdrawn in the position indicated in full lines, Flgs. 1 and 2,

theend of the plate beingelevated above thetop of the furnace wall 5 andthe plate .59 so as not to be worn by moving back and forth in {contact with said wall or plate.

, When the batch has been chargedinto the furnace themotive fluid is admitted to the cylinder 18 and the plunger .19 is advanced,

I moving the carriage 10 at the same time,

,due to the bell-crank37 being secured to thecarriage 10 and connected by the link 41- to;th e supplemental carriage S24. As the carriage advances thebars 13 are advanced and with them the pusher-plate, until said pusher-plate reaches the position indicated in dotted lines, Fig. 2. At this'point-the roller 43 of thebell-crank 37 has, reached th'e'curved portion 45 of the rail 44, and

the further movement of the; carriage 1O permits said rollerto drop down over-the curved portion 45 of the rail 44 to the position indicated in full lines, Fig. 3. This allows the upper end of the bell-crank to advance andsaid bell-crank being connected by the link'41 to thesupplemental carriage 24, said carriage is advanced by the dropping of the roller 43 from thejmiLM, and said carriage takes .the position indicatedin 3, engaging thestop 49. By this forward movement of the supplemental can riage 24 the compensating arm 31 is advanced, and with it the bars 34 which oper ate to tilt the pusher-plate 17 into a vertical position, as indicated in Fig. 3.with itslower half projecting below the front-wall 5 of .into the furnace and then tilted.

the furnace. The forward movement of the supplemental carriage 24 is limited by the lug 48 coming into engagement with the stop 49 and the further advance of the carriage 10'movesthe pusher-plate forward into the furnace and the batch is advanced as indicated in dotted lines, Fig. 1. When the batch has been properly advanced the cylinder 18 is reversed and the plunger 19 wlthdrawn. As the carriage 524 withdraws it 4 comes in contact with the stop 49 on the carriage 10. During this movement of ti e [carriage 24 the bars 34 are'withdrawn and the pusher is tilted back into an inclined position so that its lower or scraping edge is lifted from the molten glass in the tank, as shown in dotted lines hi 1, and asboth carriages withdraw said pusher is withdrawn without any scraping action, being entirely free from the surface of the molten glass. In this way the wear on the pusher-- plate is reduced, and furthermore the pusher-plate, being free from contact with the molten glass, does not drag back with it toward the charging opening of the fur nace the top or scum of the glass, and collect it there where it hardens and prevents the proper charging of the furnace. The pusher-plate is tilted to such an extent that when it reaches the frontwall 5 it is elevated above the said wall so as not to be in contact therewith or with the plate 591 thereby saving further wear on said pusherplate.

The compensating arm 31 allows for the proper play of the bars 34 and relieves any undue strain. 3

In Fig. 6 I have shown my invention as applied to charging apparatus in which the batch is carried in a scoop which is moved. The scoop 62 has the bars 63 and 64 pivoted at 65 and 66, respectively, and said bars correspond to and are operated in the same manner as the bars 13 and 34 to tilt said scoop.

hat I claim is r, s

1. In a charging. device, the combination of a carriage. means for advancing and withdrawing the same, a supplemental carriage on said first-named carriage, a forwardly tiltable member, connections between. said member and said first-named carriage andbetween said member and said supplemental carriage, and automatic means for'moving said supplemental carriage relatively to said first-named carriage whereby by movement of said supplemental carriage the tiltable memberis operated.

' 2. In a charging device, the combination of a carriage. means for advancing and withdrawingthe' same, a supplemental carriage mounted on said first-named carriage and relatively movable withreference there- .to, a forwardly tiltable member, bars on said first-named carriage" having pivotal Lil connection with said member, bars on said supplemental carriage having pivotal connection with said member, and automatic means carried by said first-named carriage for advancing and withdrawing said supplemental carriage relative to said firstnamed carriage whereby by movement of said supplemental carriage the tiltable member is operated.

3. In a charging device, the combination of a carriage, means for advancing and withdrawing the same, a supplemental carriage mounted on said first-named carriage and movable with relation thereto, a forwardly tiltable member, bars on said firstnamed carriage, pivotally connected to said member, bars on said supplemental carriage pivotally connected to said member, and a gravity operated member on said firstnamed carriage connected to said supplemental carriage, whereby said gravity operated member advances said supplemental carriage relatively to said first-named carriage whereby by movement of said supplemental carriage the tiltable member is op-' erated.

4. In a charging device, the combination of a carriage, means for advancing and withdrawing same, a supplemental carriage mounted on said first-named carriage and movable relatively with relation thereto, a forwardly tiltable member, bars on said firstnamed carriage pivotally connected to said member, bars on said supplemental carriage pivotally connected to said member, a bell-crank member on said first-named carriage, connections between said bell-crank member and said supplemental carriage, and a track on which said bell-crank moves, whereby when said bell-crank leaves said track said supplemental carriage is adva ced relatively to said first-named carriage whereby by movement of said supplemental carriage the tiltable member is operated.

5. In a charging device, the combination of a carriage, means for advancing and withdrawing the same, a supplemental carriage mounted on said first-named carriage and movable with relation thereto, a forwardly tiltable member, connections between said first-named carriage and said member, connections between said supplemental carriage and said member, means for advancing said supplemental carriage relatively to said first-named carriage, and a stop for controlling the movement of said supplemental carriage.

6. In a charging device the combination of a carriage, means for advancing and withdrawing same, a supplemental carriage mounted on said first-named carriage and movable with relation thereto, a forwardly tiltable member, bars on said first-named carriage pivotally connected to said member, a compensating arm on said supplemental carriage, bars connecting said compensating arm with said member by pivotal connections, and means for advancing and withdrawing said supplemental carriage relatively to said first-named carriage whereby by movement of said supplemental carriage the tiltable member is operated.

7. In a charging device, the combination of a carriage, means for advancing and withdrawing same, a supplemental carriage mounted on said first-named carriage and movable with relation thereto, a forwardly tiltable member, connections between said first-named carriage and said member and between said supplemental arriage and said member, a bell-crank mounted on said first-named carriage, a link connecting said bell-crank with said supplemental carriage, and a track on which said bell-crank travels, whereby when said bell crank leaves said track said supplemental carriage is advanced relatively to said first-named carriage.

In testimony whereof, I the said JOHN N. CAREY, have hereunto set my hand. 

